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EARNST.

Improve Shopify

Improve Shopify | EARNST

Optimize existing Shopify stores. Better performance, higher conversions, custom extensions, seamless integrations.

What we do

Improve existing Shopify stores that aren't reaching their full potential. Your store is live, but it could perform better: slow load times cost conversions, generic themes limit your brand, missing integrations slow your operations. We optimize performance, increase conversion rates, build custom extensions, and connect your store to the systems your business depends on.

We work with Shopify's modern development tools: Liquid for templating, Sections for flexible layouts, checkout UI extensions for customizing the buying experience, and the Admin API for backend integrations. We handle both visual optimization (making your store faster and more engaging) and functional extensions (adding features that don't exist out of the box).

Who needs this?

Shopify merchants whose existing stores aren't performing as well as they should. Common scenarios: your store loads slowly and you're losing mobile customers, your conversion rate is below industry average, your checkout process needs specific functionality (gift wrapping, custom shipping options, business account validation), or you need to connect Shopify to existing business systems.

Typical clients: DTC brands scaling past €500k annual revenue, B2B shops with complex pricing, stores with unique product types (custom configurations, subscriptions, bundles), merchants migrating from other platforms who need feature parity. If you're using Shopify's basic plan and a free theme, you probably don't need custom development yet.

How EARNST approaches it

We start with a thorough store audit: current performance metrics, conversion bottlenecks, missing features, integration gaps. Then we improve what matters most -- whether that's optimizing your existing theme, building custom extensions, or streamlining integrations. Every project starts with understanding business requirements first, technical implementation second. What's costing you revenue? What does improvement look like? What's the highest-impact change?

Performance is non-negotiable. We optimize images, minimize JavaScript, lazy load non-critical content, and test on real devices. We avoid bloated apps when custom code would work better. We set up version control (Git) and staging environments so changes can be tested before going live. And we document everything so your team or future developers understand how the system works.

Project scope

A custom theme build (based on provided designs) takes 4 to 6 weeks depending on complexity. Checkout extensions (adding upsells, custom fields, validation) typically take 1 to 2 weeks. App integrations vary: simple API connections take 3 to 5 days, complex multi-system synchronization can take 4 to 6 weeks.

Performance optimization projects (auditing and fixing an existing slow store) usually take 1 to 2 weeks and often result in 30% to 50% improvement in page load times. Ongoing support is available on a monthly retainer basis (€500 to €1,500 depending on store complexity) covering updates, bug fixes, minor adjustments, and app maintenance.

Typical Results

90+

Lighthouse performance score after optimization

9-figure

E-commerce revenue managed by our clients

<2s

Average load time after theme optimization

What you get

Custom Theme

Coded from scratch using Liquid, Sections, and modern web standards.

Checkout Extensions

Custom checkout UI extensions for upsells, shipping, and validation.

App Integration

Connect third-party apps or build custom functionality.

Performance Audit

Speed optimization, image handling, and Core Web Vitals improvement.

Training & Documentation

Team training and documentation for content management.

“Fachwissen in Marketing und IT sowie Kreativität beeindrucken mich immer aufs Neue.”

Alexander Weiskopf

GF, artContraire

Frequently Asked Questions

Do I need Shopify Plus?

Not for everything. Custom themes, app integrations, and performance optimization work with any Shopify plan. Checkout extensions and Shopify Functions require Shopify Plus.

How much does a custom Shopify theme cost?

Theme development ranges from 8,000 to 25,000 EUR depending on design complexity and number of templates. Checkout extensions from 3,000 EUR per feature. Fixed price after store audit.

Can you customize existing themes?

Yes. Often an existing theme is a good base. We extend it with custom sections, snippets, and JavaScript components while ensuring theme updates remain possible.

How does collaboration with my agency work?

We handle the technical implementation, your agency keeps design and strategy. Close coordination via Slack, Git, and regular stand-ups. Not white-label, but seamless collaboration.

Do you support Shopify Markets for international stores?

Yes. We have experience with international e-commerce setups, multi-currency, multi-language, and country-specific checkout requirements.

Ready to discuss?

Tell us about your project. We will get back to you within 24 hours.